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Electric arc furnace is an electric furnace that uses the high temperature produced by electrode arc to melt ores and metals. The energy is very concentrated when the gas discharge forms the arc, and the temperature of the arc area is above 3000 ℃. For metal smelting, the electric arc furnace is more flexible than other steelmaking furnaces, which can effectively remove sulfur, phosphorus and other impurities. The furnace temperature is easy to control, and the equipment occupies a small area, which is suitable for smelting high-quality alloy steel.
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The generalized consumption of graphite electrode in smelting can be divided into active consumption, natural consumption or technical consumption.
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Large capacity and ultra high power electric arc furnace and large furnace refining technology have become the symbol of modern steel industry.
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Electric arc furnaces use power frequency electricity, while intermediate frequency electric furnaces use intermediate frequency electricity. Compared with the electric arc furnace, the induction furnace has high thermal efficiency, so as to achieve high production efficiency, flexible operation and low energy consumption.
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Converter steelmaking is the process of converting molten iron from the blast furnace into oxygen. The furnace body can rotate. The steel plate is used as the shell, and the refractory material is used as the lining. During converter steelmaking, there is no need to heat the molten iron, because the molten iron itself is high temperature, and the oxidation reaction of heating continues inside.
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Electric arc furnace melting uses the heat generated by the electric arc between graphite electrode and iron (molten iron) to melt iron and overheat molten iron. In the process of electric arc furnace smelting, when the iron is melted, the smelting operation of further increasing the temperature and adjusting the chemical composition is carried out under the condition that the molten iron is covered by the slag.
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Steelmaking refers to the steel obtained by smelting scrap steel or pig iron into a steelmaking furnace according to a certain process, and the excess carbon and other impurities are converted into gas or slag to be removed; the encyclopedia below will introduce what steelmaking is? Commonly used steelmaking smelting methods and principles and steelmaking process flow.
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An electric arc furnace is an electric furnace that uses the high temperature generated by an electrode arc to smelt ores and metals, so it is also called an electric furnace. When the gas discharge in the electric furnace forms an arc, the energy is very concentrated, and the arc zone temperature is above 3000 ℃.
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